SHANGHAI, Sept. 2 (SMM)--SHFE lead prices opened low and moved lower today, dragging down domestic spot prices. Traded prices of well-known brands such as Nanfang, Chihong Zn & Ge and Chengyuan were between RMB 16,300-16,350/mt, with discounts of negative RMB 380-400/mt against SHFE 1110 lead contract prices. Traded prices for other brands such as Shuangyan were about RMB 16,280/mt. A wait-and-see sentiment prevailed in the market ahead of the weekend, leaving transactions quiet.